My three 7 month old hens have all stopped laying within a two week time span. I cleaned the coop, cleaned water and food dishes out and disinfected them. I also have been adding extra protein,(worms), and we have added a light to make up for the loss of day light. They are all looking great and acting healthy. There has been no changes in their life other than the change in weather, Ohio weather. We've gone from two eggs a day, (our Golden Buff laid everyday like clock work, and our Cochin and Buff Brahma alternated laying every other day), to NO EGGS. What is going on? These are our first chickens and I want to make sure that I'm doing everything on my end that I can. Any suggestions?